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scroll-down-effects"></i></div></header><main class="layout" id="content-inner"><div class="recent-posts" id="recent-posts"><div class="recent-post-item"><div class="post_cover left_radius"><a href="/2021/03/09/%E6%88%91%E7%9A%84%E7%AC%AC%E4%B8%80%E7%AF%87%E5%8D%9A%E5%AE%A2-%E8%87%AA%E6%88%91%E4%BB%8B%E7%BB%8D/" title="我的第一篇博客(自我介绍)">     <img class="post_bg" src="https://riyugo.com/i/2021/03/12/570gfl.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="我的第一篇博客(自我介绍)"></a></div><div class="recent-post-info"><a class="article-title" href="/2021/03/09/%E6%88%91%E7%9A%84%E7%AC%AC%E4%B8%80%E7%AF%87%E5%8D%9A%E5%AE%A2-%E8%87%AA%E6%88%91%E4%BB%8B%E7%BB%8D/" title="我的第一篇博客(自我介绍)">我的第一篇博客(自我介绍)</a><div class="article-meta-wrap"><span class="article-meta"><i class="fas fa-thumbtack sticky"></i><span class="sticky">置顶</span><span class="article-meta__separator">|</span></span><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time class="post-meta-date-created" datetime="2021-03-09T05:58:26.000Z" title="发表于 2021-03-09 13:58:26">2021-03-09</time><span class="article-meta__separator">|</span><i class="fas fa-history"></i><span class="article-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2021-03-11T19:15:34.742Z" title="更新于 2021-03-12 03:15:34">2021-03-12</time></span><span class="article-meta"><span class="article-meta__separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/index/">index</a></span></div><div class="content">我的第一篇博客  其实是自我介绍来的~大家好，欢迎来到我的博客！  先自我介绍一下
    本人现在就读于北京工业大学软件工程系
                    是一名大一新生
        称呼嘛。。
       叫我JOE就好啦~因为这个英文名也一直从小伴随至今
    
    从小学起，计算机就一直影响我至今，所以也从很小起就目标很明确
    不管将来怎么走，肯定是离不开计算机的！（嗯！
    
    成长的道路上，当然也缺少不了像各位一样的陪跑者，所以十分感谢各位的光顾~
    欸。。未来吗
        说实话现在很难想象自己的未来，考研或者直接工作可能对我来说都是不错的选择。。（废话
        毕竟可能我还是个小屁孩吧，懂的东西也还只是一些皮毛
        当然啦~还是可以做做梦的，做梦谁不会呢？
    考研的话，我可能会偏向于出国~又或者回到自己的家乡台湾继续深造也没准
    工作的话，BAT,字节跳动美团QAQ都是不知道多少人的梦想吧，至于岗位。。这个。。
    梦想嘛梦想嘛。。研发人员还是不会去想的，比起那个我还更想去云计算啊， ...</div></div></div><div class="recent-post-item"><div class="post_cover right_radius"><a href="/2021/03/11/%E6%A0%88%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%881%EF%BC%89/" title="栈的应用（1）">     <img class="post_bg" src="https://riyugo.com/i/2021/03/12/5465v3.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="栈的应用（1）"></a></div><div class="recent-post-info"><a class="article-title" href="/2021/03/11/%E6%A0%88%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%881%EF%BC%89/" title="栈的应用（1）">栈的应用（1）</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time class="post-meta-date-created" datetime="2021-03-11T07:00:47.000Z" title="发表于 2021-03-11 15:00:47">2021-03-11</time><span class="article-meta__separator">|</span><i class="fas fa-history"></i><span class="article-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2021-03-11T19:22:16.551Z" title="更新于 2021-03-12 03:22:16">2021-03-12</time></span><span class="article-meta tags"><span class="article-meta__separator">|</span><i class="fas fa-tag"></i><a class="article-meta__tags" href="/tags/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/">数据结构</a></span></div><div class="content">关于栈的一些应用：PS：介绍的应用是从大名鼎鼎黑皮书——马克·艾伦·维斯的《数据结构预算法分析》中摘选~
1：平衡符号leetcode上面OJ：

https://leetcode-cn.com/problems/valid-parentheses/submissions/


思路：
既然要判断左右括号的匹配，那么每一个花括号，中括号，小括号等等，只要出现了左括号，那么就一定要匹配上其右括号。
那么这样，想到了什么？“先进后出”貌似是最好的方法定义一个栈，如果是 ’ ( ‘   ‘ [ ‘  ‘ { ‘ 等左边括号，那么就让它们统统入栈当：遇到 ‘ ) ‘  ‘ ] ‘  ‘ } ‘ 等右括号，这个时候，让刚刚入栈的元素出栈
1.
2.’ ( ‘   ‘ [ ‘  ‘ { ‘ 等左边括号，那么就让它们统统入栈
3.遇到 ‘ ) ‘  ‘ ] ‘  ‘ } ‘ 等右括号：将刚刚入栈的元素取 栈顶（top）。与字符串中s的元素进行比较后，不同就返回false，相同则，先出栈 （Pop）之后返回循环，继续遍历字符串s。

注意点：（其实就是博主自己掉入坑。。）
首先先放上一张图：这是第一次 ...</div></div></div><div class="recent-post-item"><div class="post_cover left_radius"><a href="/2021/03/09/%E6%A0%88/" title="数据结构 ---- 栈">     <img class="post_bg" src="https://riyugo.com/i/2021/03/12/55u2k2.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="数据结构 ---- 栈"></a></div><div class="recent-post-info"><a class="article-title" href="/2021/03/09/%E6%A0%88/" title="数据结构 ---- 栈">数据结构 ---- 栈</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time class="post-meta-date-created" datetime="2021-03-09T09:55:00.000Z" title="发表于 2021-03-09 17:55:00">2021-03-09</time><span class="article-meta__separator">|</span><i class="fas fa-history"></i><span class="article-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2021-03-11T19:12:20.942Z" title="更新于 2021-03-12 03:12:20">2021-03-12</time></span><span class="article-meta tags"><span class="article-meta__separator">|</span><i class="fas fa-tag"></i><a class="article-meta__tags" href="/tags/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/">数据结构</a></span></div><div class="content">**
《数据结构》 ———— 栈与队列 （1）**
栈：一种特殊的线性表，其只允许在固定的一端进行插入和删除元素操作。进行数据插入和删除操作的一端称为栈顶，另一端称为栈底。栈中的数据元素遵守后进先出LIFO（Last In First Out）的原则。
如图：
进栈过程：出栈过程其实栈是本人认为最简单的一种线性表，记住LIFO （后进先出）这一原则就很好掌握~
这里有一道题让各位更好理解  栈
一个栈的初始状态为空。现将元素1、2、3、4、5、A、B、C、D、E依次入栈，然后再依次出栈，则元素出栈的顺序是（ ）。A 12345ABCDEB EDCBA54321C ABCDE12345D 54321EDCBA
仔细想想~ 答案是：B这题很简单，看到依次的字眼不难想到正确答案
还有一题稍微要想一下
若进栈序列为 1,2,3,4 ，进栈过程中可以出栈，则下列不可能的一个出栈序列是（）A 1,4,3,2B 2,3,4,1C 3,1,4,2D 3,4,2,1
答案是：C提示：元素是可以进栈后立马出栈的~想明白了吗？
接下来，来看看怎么实现栈吧：实现线性表一般可以用到数组和链表，这是两个比较流行的 ...</div></div></div><nav id="pagination"><div class="pagination"><span class="page-number current">1</span></div></nav></div><div class="aside-content" id="aside-content"><div class="card-widget card-info"><div class="card-info-avatar is-center"><img class="avatar-img" src="https://riyugo.com/i/2021/03/12/3q37a5.jpg" onerror="this.onerror=null;this.src='/img/friend_404.gif'" alt="avatar"/><div class="author-info__name">Guocheng12</div><div class="author-info__description"></div></div><div class="card-info-data"><div class="card-info-data-item is-center"><a href="/archives/"><div class="headline">文章</div><div class="length-num">3</div></a></div><div class="card-info-data-item is-center"><a href="/tags/"><div class="headline">标签</div><div class="length-num">1</div></a></div><div class="card-info-data-item is-center"><a href="/categories/"><div class="headline">分类</div><div class="length-num">1</div></a></div></div><a class="button--animated" id="card-info-btn" target="_blank" rel="noopener" href="https://github.com/xxxxxx"><i class="fab fa-github"></i><span>Follow Me</span></a><div class="card-info-social-icons is-center"><a class="social-icon" href="https://github.com/GuoCheng12" target="_blank" title="我的GitHub"><i class="fab fa-github"></i></a></div></div><div class="card-widget card-announcement"><div class="item-headline"><i class="fas fa-bullhorn card-announcement-animation"></i><span>公告</span></div><div class="announcement_content">博主是个菜鸟需要各位照顾QAQ</div></div><div class="sticky_layout"><div class="card-widget card-recent-post"><div class="item-headline"><i class="fas fa-history"></i><span>最新文章</span></div><div class="aside-list"><div class="aside-list-item"><a class="thumbnail" href="/2021/03/11/%E6%A0%88%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%881%EF%BC%89/" title="栈的应用（1）"><img src="https://riyugo.com/i/2021/03/12/5465v3.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="栈的应用（1）"/></a><div class="content"><a class="title" href="/2021/03/11/%E6%A0%88%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%881%EF%BC%89/" title="栈的应用（1）">栈的应用（1）</a><time datetime="2021-03-11T07:00:47.000Z" title="发表于 2021-03-11 15:00:47">2021-03-11</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/2021/03/09/%E6%A0%88/" title="数据结构 ---- 栈"><img src="https://riyugo.com/i/2021/03/12/55u2k2.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="数据结构 ---- 栈"/></a><div class="content"><a class="title" href="/2021/03/09/%E6%A0%88/" title="数据结构 ---- 栈">数据结构 ---- 栈</a><time datetime="2021-03-09T09:55:00.000Z" title="发表于 2021-03-09 17:55:00">2021-03-09</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/2021/03/09/%E6%88%91%E7%9A%84%E7%AC%AC%E4%B8%80%E7%AF%87%E5%8D%9A%E5%AE%A2-%E8%87%AA%E6%88%91%E4%BB%8B%E7%BB%8D/" title="我的第一篇博客(自我介绍)"><img src="https://riyugo.com/i/2021/03/12/570gfl.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="我的第一篇博客(自我介绍)"/></a><div class="content"><a class="title" href="/2021/03/09/%E6%88%91%E7%9A%84%E7%AC%AC%E4%B8%80%E7%AF%87%E5%8D%9A%E5%AE%A2-%E8%87%AA%E6%88%91%E4%BB%8B%E7%BB%8D/" title="我的第一篇博客(自我介绍)">我的第一篇博客(自我介绍)</a><time datetime="2021-03-09T05:58:26.000Z" title="发表于 2021-03-09 13:58:26">2021-03-09</time></div></div></div></div><div class="card-widget card-categories"><div class="item-headline">
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